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A. Merkel · SciRah

Researcher profile · Semantic Scholar

A. Merkel

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A. Merkel — researcher profile on SciRah

h-index: 26
Works: 103
Citations: 1,875

Most-cited papers

The Aeronomy of Ice in the Mesosphere (AIM) mission: Overview and early science results
J. Russell, S. Bailey, L. Gordley, D. Rusch +12 more
2009208 citations
Semantic Scholar
The cloud imaging and particle size experiment on the Aeronomy of Ice in the mesosphere mission: Instrument concept, design, calibration, and on-orbit performance
W. McClintock, D. Rusch, G. Thomas, A. Merkel +4 more
2009116 citations
Semantic Scholar
Observations of polar mesospheric clouds by the Student Nitric Oxide Explorer
S. Bailey, A. Merkel, G. Thomas, J. Carstens
200596 citations Open access
Semantic Scholar
The cloud imaging and particle size experiment on the aeronomy of ice in the mesosphere mission: Cloud morphology for the northern 2007 season
D. Rusch, G. Thomas, W. McClintock, A. Merkel +5 more
200987 citations
Semantic Scholar
Observations of the 5‐day planetary wave in PMC measurements from the Student Nitric Oxide Explorer Satellite
A. Merkel, G. E. Thomas, Scott E. Palo, S. Bailey
200386 citations Open access
Semantic Scholar
The impact of solar spectral irradiance variability on middle atmospheric ozone
A. Merkel, J. Harder, D. Marsh, Anne K. Smith +2 more
201185 citations
Semantic Scholar
Mercury’s seasonal sodium exosphere: MESSENGER orbital observations
T. Cassidy, A. Merkel, M. Burger, M. Sarantos +3 more
201584 citations
Semantic Scholar
Phase functions of polar mesospheric cloud ice as observed by the CIPS instrument on the AIM satellite
S. Bailey, G. Thomas, D. Rusch, A. Merkel +5 more
200984 citations
Semantic Scholar
Polar mesospheric cloud structures observed from the cloud imaging and particle size experiment on the Aeronomy of Ice in the Mesosphere spacecraft: Atmospheric gravity waves as drivers for longitudinal variability in polar mesospheric cloud occurrence
A. Chandran, D. Rusch, A. Merkel, S. Palo +4 more
201081 citations Open access
Semantic Scholar
Retrieval of polar mesospheric cloud properties from CIPS: Algorithm description, error analysis and cloud detection sensitivity
J. Lumpe, S. Bailey, J. Carstens, C. Randall +10 more
201374 citations
Semantic Scholar
Seasonal Variations in Mercury's Dayside Calcium Exosphere
M. Burger, R. Killen, W. McClintock, A. Merkel +3 more
201472 citations
Semantic Scholar
Numerical simulations of the three‐dimensional distribution of polar mesospheric clouds and comparisons with Cloud Imaging and Particle Size (CIPS) experiment and the Solar Occultation For Ice Experiment (SOFIE) observations
C. Bardeen, O. B. Toon, E. Jensen, M. Hervig +4 more
201059 citations
Semantic Scholar
Observational studies of planetary waves in PMCs and mesospheric temperature measured by SNOE and SABER
A. Merkel, R. Garcia, S. Bailey, J. Russell
200853 citations
Semantic Scholar
Comparison of polar mesospheric cloud measurements from the Cloud Imaging and Particle Size experiment and the solar backscatter ultraviolet instrument in 2007
Susanne Benze, C. Randall, M. DeLand, G. Thomas +6 more
200952 citations
Semantic Scholar
Hemispheric differences in Polar Mesospheric Cloud morphology observed by the Student Nitric Oxide Explorer
S. Bailey, A. Merkel, G. Thomas, D. Rusch
200748 citations
Semantic Scholar
Solar wind forcing at Mercury: WSA‐ENLIL model results
D. Baker, G. Poh, D. Odstrcil, C. Arge +15 more
201147 citations Open access
Semantic Scholar
Seasonal Variations of Mercury's Magnesium Dayside Exosphere from MESSENGER Observations
A. Merkel, T. Cassidy, R. Vervack, W. McClintock +3 more
201743 citations
Semantic Scholar
A cold‐pole enhancement in Mercury's sodium exosphere
T. Cassidy, W. McClintock, R. Killen, M. Sarantos +3 more
2016Geophysical Research Letters41 citations Open access
Semantic Scholar
On the horizontal and temporal structure of noctilucent clouds as observed by satellite and lidar at ALOMAR (69N)
G. Baumgarten, A. Chandran, J. Fiedler, Peter Hoffmann +6 more
201240 citations
Semantic Scholar
Mesospheric planetary wave effects on global PMC variability inferred from AIM-CIPS and TIMED-SABER for the northern summer 2007 PMC season
A. Merkel, D. Rusch, S. Palo, J. Russell +1 more
200938 citations
Semantic Scholar
Effect of trends of middle atmosphere gases on the mesosphere and thermosphere
L. Qian, D. Marsh, A. Merkel, S. Solomon +1 more
201335 citations Open access
Semantic Scholar
Modeling MESSENGER observations of calcium in Mercury's exosphere
M. Burger, R. Killen, W. McClintock, R. Vervack +3 more
201232 citations
Semantic Scholar
Atmospheric gravity wave effects on polar mesospheric clouds: A comparison of numerical simulations from CARMA 2D with AIM observations
A. Chandran, D. Rusch, G. Thomas, S. Palo +3 more
201232 citations
Semantic Scholar
New discoveries from MESSENGER and insights into Mercury's exosphere
Ronald J. Vervack, R. Killen, W. McClintock, A. Merkel +3 more
201630 citations Open access
Semantic Scholar
Evaluation of AIM CIPS measurements of Polar Mesospheric Clouds by comparison with SBUV data
Susanne Benze, C. Randall, M. DeLand, G. Thomas +3 more
201127 citations
Semantic Scholar
Large ice particles associated with small ice water content observed by AIM CIPS imagery of polar mesospheric clouds: Evidence for microphysical coupling with small-scale dynamics
D. Rusch, G. Thomas, A. Merkel, J. Olivero +6 more
201725 citations Open access
Semantic Scholar
The Missing Solar Cycle Response of the Polar Summer Mesosphere
M. Hervig, D. Siskind, S. Bailey, A. Merkel +2 more
2019Geophysical Research Letters23 citations Open access
Semantic Scholar
Altitude determination of ultraviolet measurements made by the Student Nitric Oxide Explorer
A. Merkel, C. Barth, S. Bailey
200122 citations Open access
Semantic Scholar
Evidence Connecting Mercury's Magnesium Exosphere to Its Magnesium‐Rich Surface Terrane
A. Merkel, R. Vervack, R. Killen, T. Cassidy +3 more
2018Geophysical Research Letters18 citations
Semantic Scholar
Understanding the Effects of Polar Mesospheric Clouds on the Environment of the Upper Mesosphere and Lower Thermosphere
D. Siskind, A. Merkel, D. Marsh, C. Randall +3 more
2018Journal of Geophysical Research - Atmospheres18 citations
Semantic Scholar
Observations of Mercury’s Exosphere: Composition and Structure
W. McClintock, T. Cassidy, A. Merkel, R. Killen +2 more
2018Mercury16 citations
Semantic Scholar
Seasonal–latitudinal variations of PMC particle size from SME measurements for the northern 1983 season and SNOE measurements for the northern 2000 and southern 2000/2001 seasons
D. Rusch, S. Bailey, G. Thomas, A. Merkel
200814 citations
Semantic Scholar
Detection of Large Exospheric Enhancements at Mercury due to Meteoroid Impacts
T. Cassidy, C. Schmidt, A. Merkel, J. Jasinski +1 more
2021The Planetary Science Journal10 citations Open access
Semantic Scholar
Special issue on global perspectives on the aeronomy of the summer mesopause region
R. L. Collins, S. Bailey, U. Berger, F. Lübken +1 more
20097 citations
Semantic Scholar
Polar Mesospheric Cloud structures observed from the CIPS experiment on the AIM spacecraft: Atmospheric gravity waves as drivers for longitudinal variability in PMC occurrence
A. Chandran, D. Rusch, A. Merkel, S. Palo +5 more
20105 citations
Semantic Scholar
Early MESSENGER Results for Less Abundant or Weakly Emitting Species in Mercury's Exosphere
R. Vervack, W. McClintock, R. Killen, A. Sprague +3 more
20113 citations
Semantic Scholar
MESSENGER Searches for Less Abundant or Weakly Emitting Species in Mercury's Exosphere
R. Vervack, W. McClintock, R. Killen, A. Sprague +3 more
20113 citations
Semantic Scholar
The SNOE Spacecraft: Integration, Test, Launch, Operation, and On-orbit Performance
S. Solomon, S. Bailey, C. Barth, Randal L. Davis +14 more
19983 citations
Semantic Scholar
On the relationship of polar mesospheric cloud ice water content, particle radius and mesospheric temperature and its use as a parameterization in global climate models
A. Merkel, D. Marsh, E. Jensen, A. Gettelman
20092 citations
Semantic Scholar
Longitudinal variability of Polar Mesospheric Cloud (PMC) albedo and frequency from the Cloud Imaging and Particle Size Experiment: Comparison of the 2007 and 2008 Northern Hemisphere cloud seasons
A. Merkel, D. Rusch, G. Thomas, S. Palo +4 more
20082 citations
Semantic Scholar
Comparison of Polar Mesospheric Cloud Measurements from the Cloud Imaging
S. Benze, C. Randall, M. DeLand, G. E. Thomas +9 more
20082 citations
Semantic Scholar
Characterizing dynamical processes in surface-bound exospheres via resolved sodium D emissions
P. Lierle, Emma Lovett, Carl A. Schmidt, A. Merkel
2025Frontiers in Astronomy and Space Sciences1 citations Open access
Semantic Scholar
Seasonal Variability and Local Time Dependence of Mercury's Dayside Magnesium Exosphere
A. Merkel, W. McClintock, M. Sarantos, T. Cassidy +5 more
20121 citations
Semantic Scholar
Mercury's Na Exosphere from MESSENGER Data
R. Killen, M. Burger, T. Cassidy, M. Sarantos +5 more
20121 citations
Semantic Scholar
Calcium in Mercury's Exosphere: Modeling MESSENGER Data
M. Burger, R. Killen, W. McClintock, A. Merkel +3 more
20111 citations
Semantic Scholar
Relationship of PMC ice water content, radius and Temperature
A. Merkel, D. Marsh, A. Gettelman, E. Jensen
20091 citations
Semantic Scholar
CIPS Instrument on the AIM Satellite
S. Bailey, G. Thomas, D. Rusch, A. Merkel +6 more
20081 citations
Semantic Scholar
Simulation of Polar Mesospheric Clouds Within a 3-Dimensional Chemistry Climate Model
D. Marsh, A. Merkel, A. Gettelman, C. Bardeen +2 more
20071 citations
Semantic Scholar
Seasonal Variation of PMC Particle Size from SNOE UV Measurements for the Northern 2000 and Southern 2000/2001 Seasons
D. Rusch, S. Bailey, G. Thomas, A. Merkel
20061 citations
Semantic Scholar
Seasonal variability of Polar Mesospheric Cloud altitude, particle size and observation frequency in relation to the frost point temperature.
A. Merkel, S. Bailey, D. Rusch, G. Thomas +1 more
20061 citations
Semantic Scholar

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